Explanation:
How Age and Exercise Affect Your Max Heart Rate. The relationship between the heart and exercise has been studied for more than six decades and the research is clear: Max heart rate—the highest heart rate you can safely hit during exercise—decreases with age regardless of lifestyle or level of fitness.
Emotional
i’m sorry i don’t know the second one
When you are trying to plan for safe exercise goals make sure you are not exercising to much and make sure you are eating and drinking healthy never skip a meal eat 3 times a day and you will be good